Re: [wsbpel] Q: process priority?

[Sid Askary <saskary@nuperus.com>]

Danny & Edwin,
I appreciate the notion of the similarity with OS and process.  However, 
that is not what I had in mind.  In a distributed collaborative environment 
were internal behavior is exposed; environmental attributes, such as the 
capability to prioritize, come in handy.  In the case of BPEL, the partners 
can gain insight as to the priority afforded them in a collaboration 
execution and may choose the ones that meet certain criteria.  This 
determination is possible even in the simpler case of bi-party 
collaboration were perhaps one partner has similar processes offered with 
different execution priorities.

This feature will cut across layers (i.e. application, platform, 
programming language, OS and hardware).  A “deployment descriptor”, at 
least in this context, is at best platform specific - whereas BPEL in not.

---
Sid.

On Thu, 04 Sep 2003 10:00:08 -0700, Danny van der Rijn <dannyv@tibco.com> 
wrote:

> while i don't fully understand what you're getting at with process 
> category,
> process priority isn't, to me, a property of the process, but a property 
> of
> the environment in which it executes.  to draw an analogy, operating 
> system
> processes don't know their own priority.  it's the OS that keeps track of
> that.  i'm thinking that process category might be a similar construct?
>
> danny
>
> ----- Original Message ----- From: "Sid Askary" <saskary@nuperus.com>
> To: <wsbpel@lists.oasis-open.org>
> Sent: Thursday, September 04, 2003 9:55 AM
> Subject: [wsbpel] Q: process priority?
>
>
>> Since we are dealing with an execution language, the question of runtime
>> priority comes to mind.  One could imagine an additional process 
>> property.
>> While there may be other methods, this could explicitly be expressed as 
>> an
>> additional binary attribute to the process element followed,
> conditionally,
>> by a new element.
>>
>> a)
>> <process  name="ncname" targetNamespace="uri"
>> queryLanguage="anyURI"?
>> .
>> .
>> prioritize="yes|no"?/>
>>
>> b)
>> <priority name="ncname"
>> priorityNumber="anynumber"
>> PriorityNumberBase="anynumber"/>
>>
>> NOTE:  PriorityNumberBase reflects the devisor for PriorityNumber.
>> Alternatively, one could replace the two by a single floating-point
>> fraction.
>>
>>
>> What does the group think?
>>
>> Thanks,
>> Sid.
>>
>>
>>
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